Engineering Decisions That Explain Why The Boeing 787 & Airbus A350 Feel Nothing Alike Inflight

The Boeing 787 and Airbus A350 are both composite widebodies designed to serve similar long-haul missions and even target a cabin altitude of about 6,000 feet (1,829 meters). Yet passengers often feel a notable difference in flight, driven by five engineering choices where the two aircraft diverge. The most visible is the window system: the 787 uses electrochromic glass with five electronic tint settings, while the A350 relies on manually operated pull-down shades. The 787’s tinted glass can cast a persistent blue tone, and crew can override individual settings. The article also points to differences such as cabin width at floor level and where cabin air comes from—each a deliberate comfort-and-efficiency tradeoff rather than an issue.